Home / 274,256.47-378,508.98-153,404.47

Finding the Fourth Proportional to 274,256.47, 378,508.98 and 153,404.47

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Solution

The fourth proportional to 274,256.47, 378,508.98 and 153,404.47 is: 211,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,256.47 : 378,508.98 = 153,404.47 : x
  2. Step 2: Convert to fraction form
    274,256.47/378,508.98 = 153,404.47/x
  3. Step 3: Cross multiply
    274,256.47x = 378,508.98 × 153,404.47
  4. Step 4: Simplify right side
    274,256.47x = 58,064,969,467.14
  5. Step 5: Solve for x
    x = 58,064,969,467.14/274,256.47
  6. Step 6: Final answer
    x = 211,717.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.